All Contra Costa County library branches offer programs for children, teens, adults and families. For library hours and updated information, call the local branch or 800-984-4636 or visit www.ccclib.org.

At the Martinez Library, Story Time programs are free.

Mother Goose Time: 10:30-11:30 a.m. Tuesdays through April 15. There will be stories and songs, followed by a simple craft time. Best for ages 6 months-3 years old.

Saturday Needle Art with Marilyn: 1-3:30 p.m. March 22, April 5, 19. Free. Teens and adults can drop in to work on current projects or restart a needle art hobby. Hands-on knit and crochet instructions from Marilyn.

Knit and Crochet Six-Week Spring Classes: 6-7:30 p.m. Mondays, March 24, 31; and Tuesdays, April 1, 8, 15, 22. Kids, teens and adults can register for the classes sponsored by the Helping Hands Foundation of the National Needle Arts Association. They are geared toward young people 18 and under. Adults are welcome, but supplied materials may be limited. Registration is free, but required.

Story Time: 11:15-11:45 a.m. Wednesdays, Thursdays, Fridays and Saturdays features songs, movement and simple stories. Good for ages 0-5, but all are welcome.

Afternoon Story Time: 1:15-1:45 p.m. Fridays. There will be songs, movement and simple stories to introduce children ages 0-5 to literacy.

Eco-Sewing: 3-5 p.m. March 19, 26. Teens can learn sewing machine skills and create upcycled fabric creations. The event is led by a recycling educator and artist.

Common Core Night 2: 6:30-8 p.m. March 25. Adults are invited to find out what Common Core really looks like in the classroom for grades 6-12, and get answers from educators. The presentation by the Pleasant Hill Education Commission and will feature live demonstrations by teachers in four subject areas.

Let’s Talk About It: Muslim Journeys Discussion Series — Leo Africanus: 6-7:30 p.m. April 8. High school students and adults are invited to the reading and discussion, led by Dr. Hatem Bazian, to foster opportunities for informed conversation about the histories, faith and cultures of Muslims around the world and in the United States.

Pleasant Hill Library Book Discussion: 6:30 p.m. March 18, in Room A. The discussion is on “The Lighthouse,” by P.D. James.